Vintage Coach Hunter

{
    "is_handbag_probability": 0.96,
    "coach_probability": 0.05,
    "vintage_probability": 0.105,
    "authenticity_confidence": 0.035,
    "image_quality_score": 0.295,
    "seller_misidentification_probability": 0.075,
    "confidence": 0.415,
    "recommended_max_bid": 7.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: A brown shoulder-bag interior and strap attachment are visible, confirming a handbag form.",
        "photo 1: Some gold-tone hardware is visible at the side attachment, but it is too obscured to identify as Coach hardware."
    ],
    "negative_evidence": [
        "photo 1: The bag has a dark textile lining and a visible interior zip pocket; no Coach creed patch, wordmark, or horse-and-carriage is visible.",
        "photo 1: The visible zipper pull and hardware do not show a legible Coach marking.",
        "Listing title: seller describes the material as faux brown leather, which is negative evidence for a vintage Coach glove-tanned leather bag.",
        "photo 1: The construction and lined interior appear generic rather than clearly matching a classic unlined vintage Coach style.",
        "photo 1: dark brown woven fabric lining with generic inset zip pocket and unbranded coil zipper, not unlined suede-back glove-tanned",
        "photo 1: smooth coated brown rim material with sheen consistent with faux leather, no full-grain glove-tanned texture or patina",
        "photo 1-5: five duplicate interior-only views; no creed patch, COACH wordmark, horse-and-carriage, turnlock, or hangtag visible",
        "seller title states FAUX BROWN LEATHER and UNKNOWN BRAND"
    ],
    "missing_information": [
        "Straight-on exterior front, back, sides, bottom, and all corners.",
        "A clear, emptied interior photo showing the entire back wall and every pocket for a possible creed or fabric tag.",
        "Close-up of any interior label, stamp, zipper pull, and hardware.",
        "Full strap, attachment clips, and turnlock or closure details.",
        "Seller-stated dimensions and confirmation of whether the material is faux leather or genuine leather.",
        "No exterior views: front, back, sides, bottom, corners not shown",
        "Creed patch \/ interior back wall close-up not shown",
        "Turnlock \/ closure and full hardware detail not shown",
        "Hangtag and any wordmark \/ stamps not shown",
        "Strap full length, buckle holes and attachments not shown",
        "Seller-stated dimensions and scale cue not provided"
    ],
    "authenticity_concerns": [
        "photo 1: No Coach identifier is visible, so the bag currently reads as an unbranded or lookalike handbag rather than identifiable Coach.",
        "photo 1: Dark fabric lining and generic-looking construction are inconsistent with many classic unlined glove-tanned Coach silhouettes, though the limited view prevents a definitive conclusion.",
        "photo 1-5: seller-described faux leather material inconsistent with Coach glove-tanned leather; no Coach identifiers to resolve"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because no Coach identifier or distinctive catalog silhouette is visible.",
        "photo 1: The fabric-lined interior and apparent faux-leather material lean toward a modern generic shoulder purse rather than a classic pre-2000 Coach bag.",
        "Condition cannot be reliably graded: only the interior is shown; exterior corners, bottom, strap, and hardware function are not visible.",
        "No Coach model match; generic fabric-lined faux-leather shoulder purse with no creed, wordmark, turnlock or catalog silhouette",
        "Era reasoning: fabric lining plus faux material plus seller description points to modern non-Coach, not vintage Coach",
        "Condition: seller states hardly used and interior looks clean in photo 1, but exterior, bottom, corners and strap not shown so grade cannot be confirmed"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 1: Partially visible gold-tone attachment hardware at the side; details and markings are not legible.",
        "leather_description": "photo 1: Brown exterior material is visible only along the upper edge and appears smooth, but the material cannot be verified from this view. Seller states faux leather.",
        "lining_description": "photo 1: Dark brown or gray textile lining with an interior zip pocket and slip-pocket area is visible.",
        "strap_construction": "photo 1: Brown strap edge and stitched attachment area are partially visible; full strap construction is not shown.",
        "stitching_description": "photo 1: Light contrasting stitching is visible along the upper edge and strap attachment, but full stitching quality cannot be assessed."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0042,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.97,
                "coach_probability": 0.08,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.34,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: A brown shoulder-bag interior and strap attachment are visible, confirming a handbag form.",
                    "photo 1: Some gold-tone hardware is visible at the side attachment, but it is too obscured to identify as Coach hardware."
                ],
                "negative_evidence": [
                    "photo 1: The bag has a dark textile lining and a visible interior zip pocket; no Coach creed patch, wordmark, or horse-and-carriage is visible.",
                    "photo 1: The visible zipper pull and hardware do not show a legible Coach marking.",
                    "Listing title: seller describes the material as faux brown leather, which is negative evidence for a vintage Coach glove-tanned leather bag.",
                    "photo 1: The construction and lined interior appear generic rather than clearly matching a classic unlined vintage Coach style."
                ],
                "missing_information": [
                    "Straight-on exterior front, back, sides, bottom, and all corners.",
                    "A clear, emptied interior photo showing the entire back wall and every pocket for a possible creed or fabric tag.",
                    "Close-up of any interior label, stamp, zipper pull, and hardware.",
                    "Full strap, attachment clips, and turnlock or closure details.",
                    "Seller-stated dimensions and confirmation of whether the material is faux leather or genuine leather."
                ],
                "authenticity_concerns": [
                    "photo 1: No Coach identifier is visible, so the bag currently reads as an unbranded or lookalike handbag rather than identifiable Coach.",
                    "photo 1: Dark fabric lining and generic-looking construction are inconsistent with many classic unlined glove-tanned Coach silhouettes, though the limited view prevents a definitive conclusion."
                ],
                "observed_features": {
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "serial_or_style_number_present": false,
                    "serial_or_style_number": "not_visible",
                    "coach_wordmark_present": false,
                    "turnlock_present": false,
                    "hangtag_present": false,
                    "hardware_description": "photo 1: Partially visible gold-tone attachment hardware at the side; details and markings are not legible.",
                    "leather_description": "photo 1: Brown exterior material is visible only along the upper edge and appears smooth, but the material cannot be verified from this view. Seller states faux leather.",
                    "lining_description": "photo 1: Dark brown or gray textile lining with an interior zip pocket and slip-pocket area is visible.",
                    "strap_construction": "photo 1: Brown strap edge and stitched attachment area are partially visible; full strap construction is not shown.",
                    "stitching_description": "photo 1: Light contrasting stitching is visible along the upper edge and strap attachment, but full stitching quality cannot be assessed."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because no Coach identifier or distinctive catalog silhouette is visible.",
                    "photo 1: The fabric-lined interior and apparent faux-leather material lean toward a modern generic shoulder purse rather than a classic pre-2000 Coach bag.",
                    "Condition cannot be reliably graded: only the interior is shown; exterior corners, bottom, strap, and hardware function are not visible."
                ],
                "confidence": 0.28,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-5: seller-described faux leather material inconsistent with Coach glove-tanned leather; no Coach identifiers to resolve"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.55,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.25,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "No exterior views: front, back, sides, bottom, corners not shown",
                    "Creed patch \/ interior back wall close-up not shown",
                    "Turnlock \/ closure and full hardware detail not shown",
                    "Hangtag and any wordmark \/ stamps not shown",
                    "Strap full length, buckle holes and attachments not shown",
                    "Seller-stated dimensions and scale cue not provided"
                ],
                "negative_evidence": [
                    "photo 1: dark brown woven fabric lining with generic inset zip pocket and unbranded coil zipper, not unlined suede-back glove-tanned",
                    "photo 1: smooth coated brown rim material with sheen consistent with faux leather, no full-grain glove-tanned texture or patina",
                    "photo 1-5: five duplicate interior-only views; no creed patch, COACH wordmark, horse-and-carriage, turnlock, or hangtag visible",
                    "seller title states FAUX BROWN LEATHER and UNKNOWN BRAND"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "photo 1: only small glimpses of brass-tone hardware at edges; geometry, engraving and construction not assessable",
                    "leather_description": "photo 1: brown smooth coated material at top rim, appears synthetic consistent with seller-stated faux leather; no glove-tanned grain visible",
                    "lining_description": "photo 1: dark brown woven fabric lining with inset zip pocket and small unbranded zipper pull",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 1: light contrast topstitching visible along top edge; overall stitching quality not assessable",
                    "strap_construction": "not_visible",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model match; generic fabric-lined faux-leather shoulder purse with no creed, wordmark, turnlock or catalog silhouette",
                    "Era reasoning: fabric lining plus faux material plus seller description points to modern non-Coach, not vintage Coach",
                    "Condition: seller states hardly used and interior looks clean in photo 1, but exterior, bottom, corners and strap not shown so grade cannot be confirmed"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
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            "output_tokens": 754,
            "total_tokens": 29533,
            "estimated_cost_usd": 0.013321
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
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}